15669220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{271}}^1$

素因数の和:353

約数の個数: 72

約数和(自身を含む): 39070080

約数和(自身を除く): 23400860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 59, 70, 98, 118, 140, 196, 236, 245, 271, 295, 413, 490, 542, 590, 826, 980, 1084, 1180, 1355, 1652, 1897, 2065, 2710, 2891, 3794, 4130, 5420, 5782, 7588, 8260, 9485, 11564, 13279, 14455, 15989, 18970, 26558, 28910, 31978, 37940, 53116, 57820, 63956, 66395, 79945, 111923, 132790, 159890, 223846, 265580, 319780, 447692, 559615, 783461, 1119230, 1566922, 2238460, 3133844, 3917305, 7834610, 15669220]

約数ペア:

[(1, 15669220), (2, 7834610), (4, 3917305), (5, 3133844), (7, 2238460), (10, 1566922), (14, 1119230), (20, 783461), (28, 559615), (35, 447692), (49, 319780), (59, 265580), (70, 223846), (98, 159890), (118, 132790), (140, 111923), (196, 79945), (236, 66395), (245, 63956), (271, 57820), (295, 53116), (413, 37940), (490, 31978), (542, 28910), (590, 26558), (826, 18970), (980, 15989), (1084, 14455), (1180, 13279), (1355, 11564), (1652, 9485), (1897, 8260), (2065, 7588), (2710, 5782), (2891, 5420), (3794, 4130)]